From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 39996385840E; Wed, 22 Mar 2023 07:43:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 39996385840E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1679471029; bh=5Qyj1HmKGsJJwM2vp8FdJSesz2Q1JeDC7QN7gtUpcFY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=JP6Baf5ZpcRFNllOkoJp6ys1GYiUIXwpWQV70AeSF2zfSdXUq/q0MhlCdxMzHKJZQ UZMprO7ZGW3Slxn/jW54g98lMDcSFpjFpo64qfwn95ub7QBvrY/oxiiNVizRMHB1dQ byIkF48Cuv0qYFeePm27qt2awgwT61yDf5FXlL+o= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/109240] Missed fneg/fsub optimization Date: Wed, 22 Mar 2023 07:43:48 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109240 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rguenth at gcc dot gnu.org --- Comment #1 from Richard Biener --- You can try if match.pd is "preprocessed enough" to make use of macros. vec_perm:c cannot be done, "selective" :c on a for iterator is also not possible. If you have an idea for a syntax to express the "iteration" please share it.=